Multifunctional high-voltage connector and battery product

ABSTRACT

The present disclosure provides a multifunctional high-voltage connector and a battery product, the multifunctional high-voltage connector comprises: an upper cover; a pedestal; a conductive connection structure; two mating terminals; and a harness assembly. The conductive connection structure is used to make the two mating terminals be connected in series, and the harness assembly is directly connected to one of the mating terminals. When the upper cover and the pedestal are assembled, the conductive connection structure is simultaneously in contact with the two mating terminals, thereby turning on the high-voltage circuit. When the battery product requires maintenance, the upper cover is directly detached from the base, thereby turning off the high-voltage circuit. The battery product can be electrically connected to an external device via the harness assembly. The multifunctional high-voltage connector integrates both a switch function and a high-voltage connection function, therefore the connection resistance is greatly reduced.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority to Chinese patent applicationNo. CN201821317464.5, filed on Aug. 15, 2018, which is incorporatedherein by reference in its entirety.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to the field of connector technology, andparticularly relates to a multifunctional high-voltage connector and abattery product.

BACKGROUND OF THE PRESENT DISCLOSURE

In the battery product (such as a battery pack or a high-voltagecartridge), the common types of connectors generally include:high-voltage connector, Manual Service Disconnect (MSD), and fuse. Thehigh-voltage connector is used for realizing electrical connectionbetween the battery product and an external device (such as anotherbattery pack or another high-voltage cartridge), the MSD is used forcontrolling the operation of turning on or turning off the high-voltagecircuit of the battery product, and the fuse is used for providing anoverload protection for the high-voltage circuit in the battery product.

Because the existing three types of connectors are independentcomponents, when at least above two types of connectors are requiredbased on the using requirements of the battery product, the followingproblems will occur: (1) the two types of connectors need to beconnected by an adapter sheet, thereby increasing the connectionresistance in the battery product; (2) different holes need to beprovide on the box of the battery product to respectively mount thedifferent connectors, which is not beneficial to the integration of thebattery product; (3) because the number of the holes provided on the boxof the battery product is more, which increases the interfaces to besealed, thereby reducing the sealing reliability of the battery product;(4) the multiple types of connectors are simultaneously arranged, whichincreases the mounting space of the battery product.

SUMMARY OF THE PRESENT DISCLOSURE

In view of the problem existing in the background, an object of thepresent disclosure is to provide a multifunctional high-voltageconnector and a battery product, because the multifunctionalhigh-voltage connector integrates the functions of different connectors,when the multifunctional high-voltage connector is applied to thebattery product, the space occupied by the multifunctional high-voltageconnector in the battery product is small, which improves theintegration of the battery product and reduces the connection resistancein the high-voltage circuit of the battery product.

In order to achieve the above object, the present disclosure provides amultifunctional high-voltage connector, which comprises: an upper cover;a pedestal detachably assembled with the upper cover; a conductiveconnection structure fixedly mounted to the upper cover; two matingterminals spaced apart from each other in a length direction, and eachof the mating terminals is fixedly mounted to the pedestal; and aharness assembly fixedly mounted to the pedestal. The conductiveconnection structure is used to connect the two mating terminals inseries, and the harness assembly is directly connected to one of themating terminals.

The conductive connection structure comprises: a main body portion; andtwo conductive connection portions respectively positioned at both endsof the main body portion in the length direction, and each of theconductive connection portions is connected to the main body portion.The two conductive connection portions of the conductive connectionstructure are used to respectively insert into the two mating terminals.

The conductive connection structure is an one-piece structure, and eachconductive connection portion directly protrudes from the main bodyportion in a height direction.

The conductive connection structure is a fuse.

The upper cover comprises: an outer shell; an inner shell fixed insidethe outer shell, and the inner shell is provided with an opening facingthe outer shell in a height direction; and at least one insulationsheet, each insulation sheet is fixed to the inner shell. Eachconductive connection portion and the main body portion of theconductive connection structure are accommodated in the inner shell viathe opening of the inner shell, the insulation sheet isolates theconductive connection structure from the outer shell at the opening ofthe inner shell.

The insulation sheet has: an isolating portion extending in a widthdirection; and a fixing portion positioned on one side of the isolatingportion in the width direction and extending in the height direction.The isolating portion of the insulation sheet isolates the conductiveconnection structure from the outer shell at the opening of the innershell, and the fixing portion is fixed to the inner shell.

The insulation sheet further has: a plurality of supporting portionsextending in the height direction and disposed opposite to the fixingportion, and the supporting portion is supported between the isolatingportion and the outer shell.

The fixing portion of the insulation sheet is provided as two in number,and the two fixing portions are respectively formed on both sides of theisolating portion in the width direction. The insulation sheet isprovided as one in number, and the isolating portion of the insulationsheet extends in the length direction and covers the whole surface ofthe entire conductive connection structure facing the outer shell; orthe insulation sheet is provided as two in number, and the twoinsulation sheets are spaced apart from each other in the lengthdirection and respectively cover both ends of the conductive connectionstructure in the length direction.

The fixing portion of the insulation sheet is provided as one in number.The insulation sheet is provided as four in number and disposed in twopairs, the two pairs of insulation sheets are spaced apart from eachother in the length direction. The two insulation sheets of each pairare disposed facing each other in the width direction and respectivelycover both ends of the conductive connection structure in the widthdirection.

The present disclosure further provides a battery product, whichcomprises a battery assembly, a box, and the multifunctionalhigh-voltage connector described above, the pedestal of themultifunctional high-voltage connector is fixedly mounted to the box,the battery assembly is directly connected to the other of the matingterminals.

The present disclosure has the following beneficial effects: when theupper cover and the pedestal of the multifunctional high-voltageconnector are assembled, the conductive connection structure issimultaneously in contact with the two mating terminals, and at thistime the two mating terminals are connected in series, thereby turningon the high-voltage circuit in the battery product. When the batteryproduct requires maintenance, the upper cover is directly detached fromthe base, and at this time the conductive connection structure isseparated from the two mating terminals, thereby turning off thehigh-voltage circuit in the battery product. Moreover, the batteryproduct can be electrically connected to an external device via theharness assembly of the multifunctional high-voltage connector.Therefore, the multifunctional high-voltage connector integrates both aswitch function and a high-voltage connection function. The conductiveconnection structure and the two mating terminals are equivalent to aswitch function component, the harness assembly is equivalent to ahigh-voltage connection function component, and because the high-voltageconnection function component is directly electrically connected withthe switch function component, the connection resistance in the highvoltage circuit of the battery product is greatly reduced; and becausethe high-voltage connection function component and the switch functioncomponent share the same pedestal, the space occupied by themultifunctional high-voltage connector in the battery product is reducedand the integration of the battery product is improved.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view of a multifunctional high-voltage connectoraccording to the present disclosure.

FIG. 2 is a schematic view showing an electrical connection relationshipof components in the multifunctional high-voltage connector in anembodiment, in which a conductive connection structure is a fuse.

FIG. 3 is a schematic view showing an electrical connection relationshipof components in the multifunctional high-voltage connector in anotherembodiment, in which the conductive connection structure is an one-piecestructure.

FIG. 4 is a perspective view of the multifunctional high-voltageconnector of FIG. 1 with a mounting seat of a pedestal removed.

FIG. 5 is a perspective view of the multifunctional high-voltageconnector of FIG. 4 with a harness assembly removed.

FIG. 6 is a perspective view of the conductive connection structure ofFIG. 2 .

FIG. 7 is a perspective view of a conductive connection portion of FIG.6 .

FIG. 8 is a perspective view of the conductive connection structure ofFIG. 3 .

FIG. 9 is a schematic view showing the assembling of the conductiveconnection structure of FIG. 6 and an upper cover.

FIG. 10 is a top view of FIG. 9 .

FIG. 11 is a cross sectional view taken along an A-A line of FIG. 9 .

FIG. 12 is a perspective view of FIG. 9 with an outer shell of the uppercover removed.

FIG. 13 is a varied example of FIG. 12 .

FIG. 14 is another varied example of FIG. 12 .

FIG. 15 is a perspective view of an inner shell of the upper cover ofFIG. 9 .

FIG. 16 is a perspective view of an insulation sheet of FIG. 12 .

FIG. 17 is a perspective view of an insulation sheet of FIG. 13 .

FIG. 18 is a schematic view showing the assembling of a base of thepedestal and a mating terminal.

FIG. 19 is a top view of FIG. 18 with a protective shell of the matingterminal removed for the sake of clarity.

FIG. 20 is a cross sectional view taken along a B-B line of FIG. 19 .

FIG. 21 is a perspective view of the base of the pedestal of FIG. 18 .

FIG. 22 is a perspective view of the mating terminal at left-side ofFIG. 18 .

FIG. 23 is a perspective view of the mating terminal at right-side ofFIG. 18 .

FIG. 24 is a perspective view of the mating terminal of FIG. 22 with theprotective shell removed.

FIG. 25 is a perspective view of the mating terminal of FIG. 23 with theprotective shell removed.

FIG. 26 is a perspective view of the protective shell of the matingterminal.

FIG. 27 is a schematic view showing the assembling of the base of thepedestal and the mounting seat.

FIG. 28 is a perspective view of the mounting seat of FIG. 27 .

Reference numerals are represented as follows:

-   -   1 multifunctional high-voltage connector    -   11 upper cover    -   111 outer shell    -   112 inner shell    -   1121 first receiving portion    -   11211 limiting projection    -   1122 second receiving portion    -   11221 recessed groove    -   1123 extending portion    -   113 insulation sheet    -   1131 isolating portion    -   1132 fixing portion    -   1133 supporting portion    -   12 pedestal    -   121 base    -   1211 first bottom plate portion    -   1212 assembling portion    -   1213 side plate portion    -   1214 first latching portion    -   122 mounting seat    -   1221 second bottom plate portion    -   1222 mounting portion    -   13 conductive connection structure    -   131 main body portion    -   132 conductive connection portion    -   1321 first contact segment    -   13211 injection-adhesive hole    -   13212 first connection hole    -   13213 second connection hole    -   13214 third connection hole    -   1322 second contact segment    -   13221 first avoiding hole    -   13222 second avoiding hole    -   1323 transitional connection segment    -   14 mating terminal    -   141 elastic sheet    -   1411 body portion    -   1412 elastic contact portion    -   14121 first extending segment    -   14122 second extending segment    -   142 connection sheet    -   1421 first connecting portion    -   1422 second connecting portion    -   1423 third connecting portion    -   143 protective shell    -   1431 first side wall    -   1432 second side wall    -   1433 top wall    -   1434 second latching portion    -   15 harness assembly    -   151 connection terminal    -   152 wire    -   L length direction    -   H height direction    -   W width direction

DETAILED DESCRIPTION

Hereinafter a multifunctional high-voltage connector and a batteryproduct according to the present disclosure will be described in detailin combination with the figures.

A battery product according to the present disclosure comprises abattery assembly (not shown), a box (not shown) and a multifunctionalhigh-voltage connector 1. The battery assembly is accommodated in thebox and comprises a plurality of batteries, the multifunctionalhigh-voltage connector 1 is fixedly mounted to the box and electricallyconnected to the battery assembly.

Referring to FIG. 1 to FIG. 4 , the multifunctional high-voltageconnector 1 may comprise an upper cover 11, a pedestal 12, a conductiveconnection structure 13, two mating terminals 14 and a harness assembly15. The upper cover 11 and the pedestal 12 are detachably assembled. Theconductive connection structure 13 is fixedly mounted to the upper cover11. The two mating terminals 14 are spaced apart from each other in alength direction L, and each of the mating terminals 14 is fixedlymounted to the pedestal 12. The harness assembly 15 is fixedly mountedto the pedestal 12 and directly connected to one of the mating terminals14.

The multifunctional high-voltage connector 1 is fixedly mounted to thebox via the pedestal 12 and electrically connected to the batteryassembly via the other of the mating terminals 14 (which is opposite tothe mating terminal 14 directly connected to the harness assembly 15),thus the multifunctional high-voltage connector 1 is connected into ahigh-voltage circuit in the battery product. When the upper cover 11 andthe pedestal 12 of the multifunctional high-voltage connector 1 areassembled, the conductive connection structure 13 is simultaneously incontact with the two mating terminals 14, and at this time the twomating terminals 14 are connected in series, thereby turning on thehigh-voltage circuit in the battery product. When the battery productrequires maintenance, the upper cover 11 is directly detached from thebase 12, and at this time the conductive connection structure 13 isseparated from the two mating terminals 14, thereby turning off thehigh-voltage circuit in the battery product. Moreover, the batteryproduct can be electrically connected to an external device (such asanother battery pack or a high-voltage cartridge) via the harnessassembly 15 of the multifunctional high-voltage connector 1. Therefore,the multifunctional high-voltage connector 1 integrates both a switchfunction and a high-voltage connection function.

The conductive connection structure 13 and the two mating terminals 14are equivalent to a switch function component, the harness assembly 15is equivalent to a high-voltage connection function component, andbecause the high-voltage connection function component is directlyelectrically connected with the switch function component, theconnection resistance in the high voltage circuit of the battery productis greatly reduced; and because the high-voltage connection functioncomponent and the switch function component share the same pedestal 12,the space occupied by the multifunctional high-voltage connector 1 inthe battery product is reduced and the integration of the batteryproduct is improved.

Referring to FIG. 2 , FIG. 3 , FIG. 6 and FIG. 8 , the conductiveconnection structure 13 of the multifunctional high-voltage connector 1may comprise: a main body portion 131; and two conductive connectionportions 132 respectively positioned at both ends of the main bodyportion 131 in the length direction L, and each of the conductiveconnection portions 132 is connected to the main body portion 131. Whenthe upper cover 11 and the pedestal 12 are assembled, the two conductiveconnection portions 132 of the conductive connection structure 13 arerespectively inserted into the two mating terminals 14.

In an embodiment, the conductive connection structure 13 may be anone-piece structure (that is a whole piece of connection sheet), theconductive connection portion 132 of the conductive connection structure13 directly protrudes from the main body portion 131 in a heightdirection H and may be integrally formed with the main body portion 131,as shown in FIG. 3 and FIG. 8 . At this time, the conductive connectionstructure 13 and the two mating terminals 14 are only equivalent to theswitch function component for turning off or turning on the high-voltagecircuit in the battery product.

In another embodiment, the conductive connection structure 13 can be afuse, as shown in FIG. 2 and FIG. 6 . Because the fuse has a self-fusingfunction, it can provide an overload protection for the high-voltagecircuit in the battery product. Therefore, the multifunctionalhigh-voltage connector 1 not only integrates the switch function and thehigh-voltage connection function, but also has a circuitoverload-protection function, thereby further improving the integrationof the battery product.

When the conductive connection structure 13 is the fuse, referring toFIG. 2 and FIG. 6 , the main body portion 131 of the conductiveconnection structure 13 may comprise: a tube body having openings formedat both ends in the length direction L; and a conductive fusing body(not shown) accommodated in the tube body via the opening. When thecurrent in the high-voltage circuit of the battery product isexcessively large, the conductive fusing body of the conductiveconnection structure 13 generates sufficient heat under the action ofthe excessively large current and fuses itself, thereby achieving theover-current protection for the battery product.

Referring to FIG. 2 and FIG. 6 , the conductive connection portion 132of the conductive connection structure 13 is an independent connectionsheet structure and needs to be assembled with the tube body and theconductive fusing body of the main body portion 131. Specifically, theconductive connection portion 132 may have: a first contact segment 1321connected to the conductive fusing body and sealing a correspondingopening of the tube body; a second contact segment 1322 spaced apartfrom the first contact segment 1321 in the length direction L andextending in the height direction H; and a transitional connectionsegment 1323 positioned between the second contact segment 1322 and thefirst contact segment 1321 and connected with the second contact segment1322 and the first contact segment 1321. When the upper cover 11 and thepedestal 12 of the multifunctional high-voltage connector 1 areassembled, the second contact segment 1322 of each of the conductiveconnection portions 132 of the conductive connection structure 13 isdirectly inserted into the corresponding mating terminal 14 to turn onthe high-voltage circuit in the battery product.

In order to facilitate the assembling of the fuse, generally, theconventional fuse is additionally provided with a package plate to sealthe opening of the tube body, and at this time a part of the conductiveconnection portion of the fuse needs to pass through the package plateand extend into the tube body so as to be connected with the conductivefusing body, or a part of the conductive fusing body passes through thepackage plate and extends out of the tube body so as to be connectedwith the conductive connection portion. In the multifunctionalhigh-voltage connector 1 of the present disclosure, referring to FIG. 2and FIG. 6 , because the first contact segment 1321 of each of theconductive connection portions 132 of the conductive connectionstructure 13 directly seals the corresponding opening of the tube body,therefore it is not necessary to additionally provide the package plate,thereby making the structure of the conductive connection structure 13simple and the volume of the conductive connection structure 13 small,reducing the assembling steps, and improving the space utilization ofthe multifunctional high-voltage connector 1. Moreover, when the uppercover 11 and the pedestal 12 of the multifunctional high-voltageconnector 1 are assembled, the second contact segment 1322 of each ofthe conductive connection portions 132 of the conductive connectionstructure 13 is directly inserted into the corresponding mating terminal14, therefore it is not necessary to use an adapter sheet to connect theconductive connection structure 13 and the mating terminal 14, therebyfurther reducing the connection resistance in the high-voltage circuitof the battery product.

Referring to FIG. 2 , FIG. 6 and FIG. 7 , the first contact segment1321, the transitional connection segment 1323 and the second contactsegment 1322 of the conductive connection portion 132 of the conductiveconnection structure 13 form a U-shaped structure.

Referring to FIG. 7 , the first contact segment 1321 of the conductiveconnection portion 132 may be provided with: a first connection hole13212 provided on a portion of the first contact segment 1321 close tothe transitional connection segment 1323 in the height direction H, anda second connection hole 13213 provided on a portion of the firstcontact segment 1321 away from the transitional connection segment 1323in the height direction H. The first contact segment 1321 is fixedlyconnected to the tube body of the main body portion 131 with the firstconnection hole 13212 and the second connection hole 13213.

The first contact segment 1321 may be fixedly connected to the tube bodyof the main body portion 131 by a fastener S (such as a bolt). In orderto ensure the heat dissipation of the conductive connection structure 13itself, the tube body may be made of a ceramic material.

Referring to FIG. 7 , the first contact segment 1321 may further beprovided with a third connection hole 13214 provided between the firstconnection hole 13212 and the second connection hole 13213 in the heightdirection H. The first contact segment 1321 is fixedly connected to thetube body of the main body portion 131 with the third connection hole13214.

The first contact segment 1321 may be fixedly connected to theconductive fusing body of the main body portion 131 by a fastener S. Ofcourse, the first contact segment 1321 may also be welded (for examplelaser welded, ultrasonically welded and so on) to the conductive fusingbody of the main body portion 131.

During the assembling process of the conductive connection structure 13,for the convenience of assembling, the second contact segment 1322 maybe provided with: a first avoiding hole 13221 aligned with the firstconnection hole 13212 in the length direction L; and a second avoidinghole 13222 aligned with the third connection hole 13214 in the lengthdirection L.

The assembling process of the conductive connection structure 13 isdescribed as follows: firstly, the first contact segment 1321 of one ofthe conductive connection portions 132 is fixedly connected with theconductive fusing body of the main body portion 131; then, theconductive fusing body and the one of the conductive connection portions132 connected together pass through the tube body via the opening of thetube body and the first contact segment 1321 of the conductiveconnection portion 132 is fixed to the tube body of the main bodyportion 131; finally, the first contact segment 1321 of the other of theconductive connection portions 132 is fixedly connected with theconductive fusing body of the main body portion 131 and the firstcontact segment 1321 of the other of the conductive connection portions132 is fixed to the tube body of the main body portion 131.

After the assembling of the conductive connection structure 13 iscompleted, in order to ensure the sealing between the conductiveconnection portion 132 and the main body portion 131, the first contactsegment 1321 of the conductive connection portion 132 may further beprovided with an injection-adhesive hole 13211 for filling a sealingadhesive between the first contact segment 1321 and the tube body.

Referring to FIG. 9 to FIG. 14 , the upper cover 11 may comprise: anouter shell 111; an inner shell 112 fixed inside the outer shell 111,and the inner shell 112 is provided with an opening facing the outershell 111 in the height direction H; and at least one insulation sheet113, each insulation sheet 113 is fixed to the inner shell 112. Eachconductive connection portion 132 and the main body portion 131 of theconductive connection structure 13 are accommodated in the inner shell112 via the opening of the inner shell 112, the insulation sheet 113isolates the conductive connection structure 13 from the outer shell 111at the opening of the inner shell 112. Here, the outer shell 111, theinner shell 112 and the insulation sheet 113 are separately molded andthen assembled together, which replaces the conventional molding processof double injection, thereby simplifying the production process of themultifunctional high-voltage connector 1, improving the productionefficiency, and reducing the weight.

In order to ensure the heat dissipation of the upper cover 11, the outershell 111 may be made of a metal material, the inner shell 112 may beprovided with a plurality of through holes. The material of the innershell 112 may be PBT, PPT or the like, and the material of theinsulation sheet 113 may be PPT, PA66 or the like.

Referring to FIG. 15 , the inner shell 112 may have: a first receivingportion 1121; second receiving portions 1122 respectively formed on bothsides of the first receiving portion 1121 in the length direction L; andextending portions 1123 respectively formed outside the second receivingportions 1122 in the length direction L. The first receiving portion1121 and the second receiving portion 1122 of the inner shell 112 arecommunicated with the opening of the inner shell 112, the firstreceiving portion 1121 receives the main body portion 131 of theconductive connection structure 13, the second receiving portion 1122receives the corresponding conductive connection portion 132, and theextending portion 1123 is fixedly connected to the outer shell 111.

Referring to FIG. 11 to FIG. 14 , FIG. 16 and FIG. 17 , the insulationsheet 113 may have: an isolating portion 1131 extending in the widthdirection W; and a fixing portion 1132 positioned on one side of theisolating portion 1131 in the width direction W and extending in theheight direction H. The isolating portion 1131 of the insulation sheet113 isolates the conductive connection structure 13 from the outer shell111 at the opening of the inner shell 112, and the fixing portion 1132is fixed to the inner shell 112.

Referring to FIG. 15 , a recessed groove 11221 is provided on one sideof the second receiving portion 1122 facing the outer shell 111. Thefixing portion 1132 of the insulation sheet 113 is inserted into thecorresponding recessed groove 11221 and fitted with the recessed groove11221 so as to be fixed to the inner shell 112.

Referring to FIG. 11 to FIG. 14 , FIG. 16 and FIG. 17 , the insulationsheet 113 may further have: a plurality of supporting portions 1133extending in the height direction H and disposed opposite to the fixingportion 1132, and the supporting portion 1133 is supported between theisolating portion 1131 and the outer shell 111. Here, the plurality ofsupporting portions 1133 increase the electrical gap between theconductive connection structure 13 and the outer shell 111, whichimproves the safety of use of the multifunctional high-voltage connector1. In order to further improve the heat dissipation of the upper cover11, a heat conductive material, such as a heat conductive adhesive or aheat conductive pad, may be filled between the conductive connectionstructure 13 and the outer shell 111.

Referring to FIG. 17 , the fixing portion 1132 of the insulation sheet113 may be provided as two in number, and the two fixing portions 1132are respectively formed on both sides of the isolating portion 1131 inthe width direction W.

In an embodiment, referring to FIG. 14 , the insulation sheet 113 may beprovided as one in number, the isolating portion 1131 of the insulationsheet 113 extends in the length direction L and covers the whole surfaceof the entire conductive connection structure 13 facing the outer shell111 at the same time. In another embodiment, referring to FIG. 13 , theinsulation sheet 113 may be provided as two in number, and the twoinsulation sheets 113 are spaced apart from each other in the lengthdirection L and respectively cover both ends of the conductiveconnection structure 13 in the length direction L.

Referring to FIG. 12 , the fixing portion 1132 of the insulation sheet113 may be provided as one in number. Referring to FIG. 8 , theinsulation sheet 113 may be provided as four in number and disposed intwo pairs, the two pairs of insulation sheets 113 are spaced apart fromeach other in the length direction L. The two insulation sheets 113 ofeach pair are disposed facing each other in the width direction W andrespectively cover both ends of the conductive connection structure 13in the width direction W. In other words, the four insulation sheets 113are distributed at four corners of the conductive connection structure13, and thus isolate the entire conductive connection structure 13 fromthe outer shell 111, which not only meets the requirements of theinsulating protection design, but also reduces the weight of themultifunctional high-voltage connector 1.

Referring to FIG. 18 to FIG. 25 , each of the mating terminals 14 maycomprise: two elastic sheets 141 disposed facing each other in thelength direction L; and a connection sheet 142. Each of the elasticsheets 141 may have: a body portion 1411; and an elastic contact portion1412 protruding from the body portion 1411 in the height direction H.The connection sheet 142 may have: a first connecting portion 1421extending in the height direction H; and a second connecting portion1422 extending in the length direction L. The first connecting portion1421 of the connection sheet 142 is fixed between the body portions 1411of the two elastic sheets 141, the second connecting portion 1422 ispositioned outside the two elastic sheets 141 in the length direction L.

When the upper cover 11 and the pedestal 12 are assembled, the elasticcontact portions 1412 of the two elastic sheets 141 of the matingterminal 14 directly clamp the second contact segment 1322 of thecorresponding conductive connection portion 132 of the conductiveconnection structure 13. Here, based on the elasticity of the elasticsheet 141 itself, the conductive connection portion 132 of theconductive connection structure 13 is firmly fixed between the twoelastic sheets 141 of the corresponding mating terminal 14, therebyimproving the connection reliability between the conductive connectionstructure 13 and the mating terminal 14.

For the mating terminal 14 directly connected to the battery assembly,referring to FIG. 23 and FIG. 25 , the second connecting portion 1422 ofthe connection sheet 142 of the mating terminal 14 is directly connectedto the first connecting portion 1421. The second connecting portion 1422of the connection sheet 142 of the mating terminal 14 is positioned onone side of the pedestal 12 facing the battery assembly and directlyconnected to the battery assembly, therefore it is not necessary to makethe conductive connection structure 13 be connected with the matingterminal 14 by the adapter sheet, thereby reducing the connectionresistance in the high-voltage circuit of the battery product. In anembodiment, the second connecting portion 1422 of the connection sheet142 of the mating terminal 14 and the first connecting portion 1421 mayform a L-shaped structure.

For the mating terminal 14 electrically connected to the harnessassembly 15 directly, referring to FIG. 22 and FIG. 24 , the secondconnecting portion 1422 of the connection sheet 142 of the matingterminal 14 is spaced apart from the first connecting portion 1421 inthe length direction L. The second connecting portion 1422 of theconnection sheet 142 of the mating terminal 14 is positioned on one sideof the pedestal 12 away from the battery assembly and directly connectedto the harness assembly 15, therefore it is not necessary to make thehigh-voltage connection function component of the multifunctionalhigh-voltage connector 1 be connected with the switch function componentby the adapter sheet, thereby reducing the connection resistance in thehigh-voltage circuit of the battery product. The connection sheet 142 ofthe mating terminal 14 may further have a third connecting portion 1423positioned between the first connecting portion 1421 and the secondconnecting portion 1422, and the third connecting portion 1423 isconnected with the first connecting portion 1421 and the secondconnecting portion 1422. In an embodiment, the third connecting portion1423 of the connection sheet 142 may be formed in a L-shaped structure.

Referring to FIG. 22 to FIG. 25 , the first connecting portion 1421 ofthe connection sheet 142 of the mating terminal 14 may be fixedlyconnected to the body portions 1411 of the two elastic sheets 141 by afastener S.

Referring to FIG. 24 and FIG. 25 , the elastic contact portion 1412 ofeach elastic sheet 141 may have: a first extending segment 14121connected to the body portion 1411 and extending obliquely toward theother elastic sheet 141 in the height direction H; and a secondextending segment 14122 connected to the first extending segment 14121and extending obliquely away from the other elastic sheet 141 in theheight direction H. Here, the first extending segments 14121 and thesecond extending segments 14122 of the elastic sheets 141 wholly form astructure having a smaller opening at the upper end and a larger waistportion, therefore the clamping force applied to the correspondingconductive connection portion 132 of the conductive connection structure13 by the elastic sheets 141 of the mating terminal 14 is concentratedon the connected location between the first extending segment 14121 andthe second extending segment 14122, thereby improving the connectionreliability between the conductive connection structure 13 and themating terminal 14 and further reducing the connection resistance in thehigh-voltage circuit of the battery product.

Referring to FIG. 24 and FIG. 25 , the elastic contact portion 1412 ofeach elastic sheet 141 may be provided as multiple in number, themultiple elastic contact portions 1412 are spaced apart from each otherin the width direction W. The multiple elastic contact portions 1412 maybe formed in a finger-shaped structure.

In order to increase the number of insertions and extractions betweenthe conductive connection structure 13 and the mating terminal 14, asilver may be plated on an outer surface of the elastic contact portion1412 of the elastic sheet 141.

Referring to FIG. 22 and FIG. 23 , the mating terminal 14 may comprise aprotective shell 143 having two first side walls 1431 disposed facingeach other in the length direction L. The elastic contact portion 1412of each elastic sheet 141 is positioned between the two first side walls1431 of the protective shell 143 and elastically presses against thecorresponding first side wall 1431 so as to be fixed to the protectiveshell 143.

Referring to FIG. 22 , FIG. 23 and FIG. 26 , the protective shell 143may further have: two second side walls 1432 disposed facing each otherin the width direction W, each of the second side walls 1432 isconnected to the two first side walls 1431; and two top walls 1433spaced apart from each other in the length direction L, each of the topwalls 1433 is correspondingly connected to one of the first side walls1431 and extends toward the other of the first side walls 1431 in thelength direction L. A top end of the elastic contact portion 1412 of theelastic sheet 141 away from the main body portion 1411 elasticallypresses against the top wall 1433 from below the top wall 1433 of theprotective shell 143, so that the elastic contact portion 1412 of theelastic sheet 141 is firmly fixed in the protective shell 143.

In order to facilitate assembling, the upper cover 11 is formed with aslanted port structure (as shown in FIG. 9 ), the pedestal 12 (as shownin FIG. 27 , FIG. 28 and FIG. 21 ) is also formed with a slanted portstructure and is assembled with the upper cover 11. Moreover, the designof the slanted port structures reduces internal space of themultifunctional high-voltage connector 1, thereby being beneficial toimprove the space utilization of the battery product.

Referring to FIG. 18 to FIG. 21 , the pedestal 12 may comprise a base121 fixedly mounting the two mating terminals 14. Specifically, the base121 may have: a first bottom plate portion 1211; two assembling portions1212 spaced apart from each other in the length direction L, each of theassembling portions 1212 protrudes from the first bottom plate portion1211 in the height direction H. The connection sheet 142 of the matingterminal 14 and the main body portion 1411 of the elastic sheet 141 areembedded in the first bottom plate portion 1211 of the pedestal 12, andat least a portion of the elastic contact portion 1412 of the elasticsheet 141 extends out of the corresponding assembling portion 1212. Theprotective shell 143 of the mating terminal 14 is fixed to thecorresponding assembling portion 1212.

Referring to FIG. 21 , the base 121 may have two side plate portions1213 spaced apart from each other in the width direction W, each of theside plate portions 1213 protrudes from the first bottom plate portion1211 in the height direction H. The assembling portion 1212 is formedbetween the two side plate portions 1213.

Referring to FIG. 21 , the base 121 may have a first latching portion1214 disposed on the assembling portion 1212. Referring to FIG. 26 , theprotective shell 143 of the mating terminal 14 may further have a secondlatching portion 1434 latched with the first latching portion 1213 ofthe base 121 of the pedestal 12 (such as a concave-convex fit) so as tobe fixed to the pedestal 12. Specifically, the first latching portion1214 may be a protrusion, the second latching portion 1434 may be athrough-hole structure; or the first latching portion 1214 may be athrough-hole structure, the second latching portion 1434 may be aprotrusion.

Referring to FIG. 27 , the pedestal 12 may further comprise a mountingseat 122 fixedly mounting the base 121. The mounting seat 122 of thepedestal 12 and the box of the battery product may be differentcomponents, and the pedestal 12 is fixed to the box via the mountingseat 122. Of course, the mounting seat 122 may also be one of side wallsof the box of the battery product.

Referring to FIG. 28 , the mounting seat 122 may have: a second bottomplate portion 1221; and a mounting portion 1222 protruding from thesecond bottom plate portion 1221 in the height direction H. Referring toFIG. 27 , the two side plate portions 1213 of the base 121 arepositioned in the mounting portion 1222 of the mounting seat 122, andthe upper cover 11 is fixedly connected to the mounting portion 1222 ofthe mounting seat 122.

Referring to FIG. 2 , FIG. 3 and FIG. 27 , the harness assembly 15 maycomprise: a connection terminal 151; and a wire 152 connected to theconnection terminal 151. The connection terminal 151 is positioned inthe pedestal 12 and connected to the second connecting portion 1422 ofthe corresponding mating terminal 14, and the wire 152 extends out ofthe pedestal 12 and is used for electrically connected to the externaldevice of the battery product.

What is claimed is:
 1. A multifunctional high-voltage connector,comprising: an upper cover; a pedestal detachably assembled with theupper cover; a conductive connection structure fixedly mounted to theupper cover; two mating terminals spaced apart from each other in alength direction of the multifunctional high-voltage connector, and eachof the mating terminals being fixedly mounted to the pedestal; and aharness assembly fixedly mounted to the pedestal; the conductiveconnection structure being used to connect the two mating terminals inseries, and the harness assembly being directly connected to one of themating terminals, wherein the upper cover comprises: an outer shell; aninner shell fixed inside the outer shell, and the inner shell isprovided with an opening exposing a portion of the outer shell in aheight direction of the multifunctional high-voltage connector; theconductive connection structure is a fuse, the conductive connectionstructure comprises a main body portion, the main body portion of theconductive connection structure comprises: a tube body having openingsformed at both ends in the length direction of the multifunctionalhigh-voltage connector and a conductive fusing body accommodated in thetube body via the openings of the tube body; the main body portion ofthe conductive connection structure is accommodated in the inner shellvia the opening of the inner shell; the pedestal is provided with anopening facing the upper cover, the inner shell is received in theopening of the pedestal; the pedestal comprises a mounting seat and abase fixedly attached to the mounting seat; the base comprises a firstbottom plate portion and a first shell protruding upwardly from thefirst bottom plate portion in the height direction of themultifunctional high-voltage connector; the mounting seat comprises asecond bottom plate portion and a mounting portion protruding upwardlyfrom the second bottom plate portion in the height direction of themultifunctional high-voltage connector; and the first shell ispositioned inside the mounting portion.
 2. The multifunctionalhigh-voltage connector according to claim 1, wherein the conductiveconnection structure further comprises: two conductive connectionportions respectively positioned at both ends of the main body portionin the length direction, and each of the conductive connection portionsis connected to the main body portion; the two conductive connectionportions of the conductive connection structure are used to respectivelyinsert into the two mating terminals.
 3. The multifunctionalhigh-voltage connector according to claim 1, wherein the upper covercomprises a plurality of insulation sheets, each insulation sheet beingfixed to a respective location of the inner shell; and each of the twoconductive connection portions, the plurality of insulation sheetsisolate the conductive connection structure from the outer shell at theopening of the inner shell.
 4. The multifunctional high-voltageconnector according to claim 3, wherein each insulation sheet has: anisolating portion extending in a width direction; and a fixing portionpositioned on one side of the isolating portion in the width directionand extending in the height direction; and the isolating portion of theinsulation sheet isolates the conductive connection structure from theouter shell at the opening of the inner shell, and the fixing portion isfixed to the inner shell.
 5. The multifunctional high-voltage connectoraccording to claim 4, wherein the insulation sheet further has aplurality of supporting portions extending in the height direction anddisposed opposite to the fixing portion, and each supporting portion issupported between the isolating portion and the outer shell.
 6. Themultifunctional high-voltage connector according to claim 4, wherein thefixing portion of each insulation sheet is two fixing portions, and thetwo fixing portions are respectively formed on both sides of theisolating portion in the width direction; and the plurality ofinsulation sheets are two insulation sheets, and the two insulationsheets are spaced apart from each other in the length direction andrespectively cover both ends of the conductive connection structure inthe length direction.
 7. The multifunctional high-voltage connectoraccording to claim 4, wherein the fixing portion of the insulation sheetis one fixing portion; the plurality of insulation sheets are fourinsulation sheets and the four insulation sheets are disposed in twopairs, the two pairs of insulation sheets are spaced apart from eachother in the length direction; and the two insulation sheets of eachpair are disposed facing each other in the width direction andrespectively cover both ends of the conductive connection structure inthe width direction.
 8. A battery product, comprising a batteryassembly, a box and a multifunctional high-voltage connector, whereinthe multifunctional high-voltage connector comprises an upper cover, apedestal, a conductive connection structure, two mating terminals, and aharness assembly; the pedestal is detachably assembled with the uppercover and is fixedly mounted to the box; the conductive connectionstructure is fixedly mounted to the upper cover, and the conductiveconnection structure is used to connect the two mating terminals inseries; the two mating terminals are spaced apart from each other in alength direction, and each of the mating terminals is fixedly mounted tothe pedestal; the harness assembly is fixedly mounted to the pedestal,and the harness assembly is directly connected to one of the matingterminals; the battery assembly is directly connected to the other ofthe mating terminals, the upper cover comprises: an outer shell; aninner shell fixed inside the outer shell, and the inner shell isprovided with an opening exposing a portion of the outer shell in aheight direction of the multifunctional high-voltage connector; theconductive connection structure is a fuse, the conductive connectionstructure comprises a main body portion, the main body portion of theconductive connection structure comprises: a tube body having openingsformed at both ends in the length direction of the multifunctionalhigh-voltage connector and a conductive fusing body accommodated in thetube body via the openings of the tube body; the main body portion ofthe conductive connection structure is accommodated in the inner shellvia the opening of the inner shell; the pedestal is provided with anopening facing the upper cover, the inner shell is received in theopening of the pedestal; the pedestal comprises a mounting seat and abase fixedly attached to the mounting seat; the base comprises a firstbottom plate portion and a first shell protruding upwardly from thefirst bottom plate portion in the height direction of themultifunctional high-voltage connector; the mounting seat comprises asecond bottom plate portion and a mounting portion protruding upwardlyfrom the second bottom plate portion in the height direction of themultifunctional high-voltage connector; and the first shell ispositioned inside the mounting portion.
 9. The battery product accordingto claim 8, wherein the conductive connection structure furthercomprises: two conductive connection portions respectively positioned atboth ends of the main body portion in the length direction, and each ofthe conductive connection portions is connected to the main bodyportion; the two conductive connection portions of the conductiveconnection structure are used to respectively insert into the two matingterminals.
 10. The battery product according to claim 8, wherein theupper cover comprises a plurality of insulation sheets, each insulationsheet being fixed to a respective location of the inner shell; and eachof the two conductive connection portions, the plurality of insulationsheets isolate the conductive connection structure from the outer shellat the opening of the inner shell.
 11. The battery product according toclaim 10, wherein each insulation sheet has: an isolating portionextending in a width direction; and a fixing portion positioned on oneside of the isolating portion in the width direction and extending inthe height direction; and the isolating portion of the insulation sheetisolates the conductive connection structure from the outer shell at theopening of the inner shell, and the fixing portion is fixed to the innershell.
 12. The battery product according to claim 11, wherein theinsulation sheet further has: a plurality of supporting portionsextending in the height direction and disposed opposite to the fixingportion, and the supporting portion is supported between the isolatingportion and the outer shell.
 13. The battery product according to claim11, wherein the fixing portion of each insulation sheet is two fixingportions, and the two fixing portions are respectively formed on bothsides of the isolating portion in the width direction; and the pluralityof insulation sheets are two insulation sheets, and the two insulationsheets are spaced apart from each other in the length direction andrespectively cover both ends of the conductive connection structure inthe length direction.
 14. The battery product according to claim 11,wherein the fixing portion of the insulation sheet is one fixingportion; the plurality of insulation sheets are four insulation sheetsand the four insulation sheets are disposed in two pairs, the two pairsof insulation sheets are spaced apart from each other in the lengthdirection; and the two insulation sheets of each pair are disposedfacing each other in the width direction and respectively cover bothends of the conductive connection structure in the width direction. 15.The multifunctional high-voltage connector according to claim 4, whereinthe inner shell has a recessed groove at a side facing the outer shell,and the fixing portion of the insulation sheet is inserted into therecessed groove and fixed with the inner shell.
 16. The multifunctionalhigh-voltage connector according to claim 1, wherein the basecomprises-two assembling portions spaced apart from each other in thelength direction and protruding from the first bottom plate portion inthe height direction; each of the two assembling portions is positionedbetween a first end part and a second end part of the base; and the twomating terminals are respectively fixed with the two assemblingportions.
 17. The multifunctional high-voltage connector according toclaim 1, wherein one of the two mating terminals is exposed from a lowerside of the first bottom plate portion in the height direction of themultifunctional high-voltage connector.
 18. The multifunctionalhigh-voltage connector according to claim 1, wherein each of the twomating terminals comprises a protective shell fixed to the first shellof the base.
 19. The multifunctional high-voltage connector according toclaim 1, wherein the inner shell has two extending portions whichrespectively extend outwardly from two sides of the opening of the innershell in the length direction of the multifunctional high-voltageconnector, the two extending portions are fixedly connected to the outershell.
 20. The battery product according to claim 8, wherein one of thetwo mating terminals is exposed from a lower side of the first bottomplate portion in the height direction of the multifunctionalhigh-voltage connector.
 21. The battery product according to claim 8,wherein each of the two mating terminals comprises a protective shellfixed to the first shell of the base.
 22. The battery product accordingto claim 8, wherein the inner shell has two extending portions whichrespectively extend outwardly from two sides of the opening of the innershell in the length direction of the multifunctional high-voltageconnector, the two extending portions are fixedly connected to the outershell.